atcomsystems.ca/forum Forums General General Telephone & Systems Information Paging in large area with talkback

The Hal Biss answer is the most practical solution for your needs and eliminates the human screw ups
like battery replacement / dropped damaged eq. /
'I left the pager home / the dog ate the pager
joe quit and took it with him

and give the customer acess to an outside call.

My 02 cents

I'm going to discuss things with my customer tomorrow…
Valcom offers talkback page controls with multiple zones. Each zone will handle 2 talkback devices and up to 40 one-way speakers at the same time. I wonder how they avoid feedback if using only 2 talkback speakers in close proximity such as in an office area with no one-way speakers used. In what I have read in their tech documents it is doable. Does anybody have any experience with manufacturers other than Valcom and Bogen?

I left the number for tech support @ Valcom
above ,give them a call.

Valcom and bogen are the most widely stocked
items and easiest to get .

I done a few installations like this the biggest factors are
how much background noise
how big of area and obstructions
how many seperate areas to talkback from
how many locations need paging origination
what type of enviroment
feedback is only an issue if paging telephone is located to close to speakers

You said a lot. I have three rooms 1 is 130’ X 80’, two are aprox. 40’X 60’. All are warehouse space except one of the smaller rooms has a bagging machine in it. You can talk over the noise of the machine but it is rather loud and I think presents a problem there. My customer would like to be able to page with all-page and talkback to all rooms at once. This warehouse stores animal feed and supplies to both large farms and individuals with pets. They have a grain mill and can do custom blending in large volume. The area can get dusty. The large building is open with two rows of metal shelving. It has 16’ walls with an open ceiling to a 5 X 4 pitched roof. It is a new building. The other two rooms are like an older wooden New England barn. Post and beam with 8’ to 10’ceilings. The help is always on the move so a paging system would be ideal. It’s a one-time charge and no batteries to change or equipment to replace.

I quick suggestion would be put the Bogen TBA-15 with horns in all the quite areas and setup oneway speaker(no talkback) with phone near the bagging machine. Owner could make all-call page and hear people talback except from bagging room they would have to use phone.

I just went to Bogen.com. This might just do it.
I'm trying to figure out how many speakers I can use. The system has a 15W output. So I will use 15W paging horns. I can't find a spec to how many I can use. I'll contact Tech support tomorrow. They also offer a free design service.
Thanks for the info and suggestion.

This has been an interesting day. Bogen told me that with the area that I had, I would have to turn up the power on the horns so high that I would be limited to 3 or 4, which is not enough. The supply will handle 15 W. Valcom did have a solution with a V-5323105 control along with a SMA-120W Amp and SX15-T horns set to 7.5W. These are 70 V horns, which would require 16ga shielded twisted pair. When I put the cost of that system together it blew the budget. I think that this thing might “boil-down” (no pun intended, it’s sugaring season here in Vermont) to A single zone Valcom Talkback V-9941A with the proper power supply. This would give two zones of talkback, which they could, strategically place in the most populated areas and then scatter a few 1-way speakers around with a phone within reasonable distance.

That large Valcom talkback is not on the Valcom.com site. It can be seen at www.pagepac.com. It is a Valcom product. The Amp can be seen at www.clarity-com.com. You can see the horns there also.

This solution sounds fimilar to one that was posted on March 17 around 9PM. Good luck with your install and remember try to be up front about the loudest sound taking control of the talkbak switching .

Hi OBTW,
What do you mean when you say "up front about the loudest sound taking control of the talkback switching”. I thought the phone system controls the (talk and listen). In other words if the person who pages remains silent then he can monitor through both talkback devices. Is this thinking correct?